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https://github.com/n64decomp/mk64
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Tyler McGavran
e413e2ec00
* Match func_802B5450, func_802B5F00, func_802B71CC * Match func_802B4FF8 Also do some import fixing Signed-off-by: Taggerung <tyler.taggerung@gmail.com>
26 lines
869 B
C
26 lines
869 B
C
#ifndef TRIG_TABLES_H
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#define TRIG_TABLES_H
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/*
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* The sine and cosine tables overlap, but "#define gCosineTable (gSineTable +
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* 0x400)" doesn't give expected codegen; gSineTable and gCosineTable need to
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* be different symbols for code to match. Most likely the tables were placed
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* adjacent to each other, and gSineTable cut short, such that reads overflow
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* into gCosineTable.
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*
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* These kinds of out of bounds reads are undefined behavior, and break on
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* e.g. GCC (which doesn't place the tables next to each other, and probably
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* exploits array sizes for range analysis-based optimizations as well).
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* Thus, for non-IDO compilers we use the standard-compliant version.
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*/
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extern f32 gSineTable[];
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#ifdef AVOID_UB
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#define gCosineTable (gSineTable + 0x400)
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#else
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extern f32 gCosineTable[];
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#endif
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extern s16 gArctanTable[];
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#endif
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